Meir Abelson, a former surveyor living in Israel, has dedicated his life to charity work. Abelson serves on the board of directors of Keren Yaldenu (Our Child's Fund) in Jerusalem, Israel. The collection contains correspondence between Myer and Ruth Solomon of Williamsport, Pennsylvania and Meir Abelson of Israel. It also includes monthly newsletters from Abelson.

The Aber family collection primarily consists of material relating to the personal and Jewish non-profit activities of Joshua and Ita Aber of Yonkers, New York. The collection includes correspondence between the Abers and members of the Rosner family. The collection also includes a transcript of an interview with Egyptian-born Vicky Namad conducted by Ita Aber in 1982.

Agudath Israel was founded in 1912 in Kattowitz and grew to be the political, communal, and cultural voice of those Orthodox Jews who believed in a traditional approach to Jewish life and rejected Zionism and the trappings of modernity. The collection consists of printed material published and distributed by Agudath Israel in Europe and Israel, such as bulletins,
parshat ha-shavua (weekly Torah portion) sheets, press releases, schedules of events, and broadsides.

The collection consists of one pamphlet in Yiddish containing articles against drafting women into the Israeli Army or having women participate in National Service in Israel. The pamphlet was published in 1953 by the Israel Commission of Agudath Israel of America.

Agunah Inc., also known as Agunah International, is an organization that provides assistance to women whose husbands refuse to grant them Jewish divorces, causing the women to become
agunot (chained women) and unable to remarry according to Jewish law. The collection consists of a pamphlet entitled "Agunah Inc. Replies to the Beth Din of America," written by Susan Aranoff in response to criticism and condemnation of it by the Beth Din of America, an Orthodox rabbinic court serving the Jewish community of North America.

Rabbi Dr. Isaac Abraham Alcalay (1882-1978) served as the Chief Rabbi of Yugoslavia from 1923-1941 and then of the Central Sephardic Communities in America fom 1943-1968. The collection primarily consists of photographs of Alcalay's rabbinic career in the United States. There are also numerous family photographs, a small number of images from his pre-war career in Europe, and various other materials from his personal life and rabbinic career.

The collection contains a letter that includes a list of questions on Passover products,
kaschering (the practice of making objects fit for kosher usage) and prices, written in German. The letter was issued by J. Anton Alexander, a German Jewish grocer whose firm was established in Berlin in 1865. The letter was co-signed on March 7, 1940 by five German rabbis headed by Rabbi Dr. Joseph Carlebach of Hamburg.

Emanuel Alexandre was an attorney, art collector, and a close personal friend of former Yeshiva University president Dr. Samuel Belkin. Mr. Alexandre donated his entire collection of 3,000 books to Yeshiva University Library in 1977. The archival collection includes an invitation to the luncheon of the American Biblical Encyclopedia Society, a list of participants at a dinner for the Jewish Publication Society of America, and a meeting announcement of a landsmanshaft synagogue.

The American Federation of Jews from Central Europe was established by Jewish victims of Nazism from Central Europe in the United States to safeguard their rights and to sponsor social service programs. The collection consists of a typescript of a survey which examined Jewish communal property in Germany prior to November 1938, as well as reports and information bulletins relating to Central European Jews in post-war Europe.

Hebrew University opened its doors to students in 1925, and by 1949, the school had 1300 students. The American Friends of Hebrew University brought the achievements of Hebrew University to the United States by bringing scholars and scientists to American communities to give lectures and recruit students. The collection consists of a membership recruitment letter and application, an article, a memo, and an invitation, all pertaining to the American Friends of Hebrew University.

The American Jewish Committee is an advocacy group formed in 1906 to combat anti-Semitism and defend the rights of Jews worldwide. The collection consists of one brochure describing the activities of the American Jewish Committee, printed in 1932.

The American Jewish Joint Distribution Committee (JDC) was founded in 1914 to provide aid to Jews in Palestine and Eastern Europe. During the interwar years they supplied basic services to Jewish war survivors and helped with the reconstruction of Jewish communal infrastructure in Eastern Europe. The collection documents the relief efforts of the JDC in Eastern Europe between 1914-1936.

The Association of Orthodox Jewish Teachers was founded to promote the interests of Orthodox Jewish teachers working in the New York City public school system. The collection consists of Association newsletters published between 1987 and 2001.

The mission of Athra Kadisha: the Society for the Preservation of Jewish Holy Sites, is to protect Jewish burial sites worldwide. The collection contains copies of correspondence, maps, flyers and newspaper clippings relating to the organization's efforts to prevent desecration of Jewish cemeteries in Israel and the Ottensen Jewish Cemetery in Altona-Hamburg, Germany.